2501780 has 24 divisors (see below), whose sum is σ = 5335008. Its totient is φ = 985248.

The previous prime is 2501761. The next prime is 2501789. The reversal of 2501780 is 871052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (222292).

2^2501780 is an apocalyptic number.

2501780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2501780 is an abundant number, since it is smaller than the sum of its proper divisors (2833228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2501780 is a wasteful number, since it uses less digits than its factorization.

2501780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 2501780 is about 1581.7016153497. The cubic root of 2501780 is about 135.7530842771.

The spelling of 2501780 in words is "two million, five hundred one thousand, seven hundred eighty".